I am getting tired of dragging the blue waste hose to the street whenever i have to take water out or backwash. I was thinking of running pvc under the ground from the waste pipe to the street and cut a hole in the curb. Should i run 1 1/2 inch or 2 inch pipe. All pool plumbing is 1 1/2 pipe Is this Plausable? Any tips to get pvc under sidewalk? Any tips how i can cut the hole in the curb without damaging it too bad?

Hi all, I have a Hayward H100ID pool heater. Its 3 years old. The heater worked good this year till last week. Here is what it does now, when turned on the fan starts then it ignights and the flame comes on. I can see the flame throu the little peephole and feel the heat comming out the vent. The flame stays on for about 10 seconds then goes out but the blower fan stays on. the water flow pressure is good, the propaine tank is full, and the pool filter is clean. I can turn the heater off and back on and it will do the same, flame on then shut off. Anyone have any ideas? Thanks for your help.